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Finding the Fourth Proportional to 172,536, 238,016.21 and 111,266.00

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Solution

The fourth proportional to 172,536, 238,016.21 and 111,266.00 is: 153,493.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,536 : 238,016.21 = 111,266.00 : x
  2. Step 2: Convert to fraction form
    172,536/238,016.21 = 111,266.00/x
  3. Step 3: Cross multiply
    172,536x = 238,016.21 × 111,266.00
  4. Step 4: Simplify right side
    172,536x = 26,483,111,660.57
  5. Step 5: Solve for x
    x = 26,483,111,660.57/172,536
  6. Step 6: Final answer
    x = 153,493.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.